WO2017001594A1 - Hochfrequenzverstärkeranordnung - Google Patents
Hochfrequenzverstärkeranordnung Download PDFInfo
- Publication number
- WO2017001594A1 WO2017001594A1 PCT/EP2016/065376 EP2016065376W WO2017001594A1 WO 2017001594 A1 WO2017001594 A1 WO 2017001594A1 EP 2016065376 W EP2016065376 W EP 2016065376W WO 2017001594 A1 WO2017001594 A1 WO 2017001594A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frequency amplifier
- amplifier arrangement
- arrangement according
- circuit board
- printed circuit
- Prior art date
Links
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 16
- 230000005284 excitation Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010754 BS 2869 Class F Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/32174—Circuits specially adapted for controlling the RF discharge
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
Definitions
- the invention relates to a high-frequency amplifier arrangement which is suitable for generating output powers> 1 kW at frequencies> 2 MHz for plasma excitation.
- LDMOS transistors are known from the following specification: Freescale Semiconductor, Technical Data, RF Power LDMOS Transistors, Document Number: MRFE6VP61K25H Rev. 4.1, 3/2014.
- transistors in particular LDMOS transistors.
- LDMOS transistors are often intended for operation in the amplifier classes AB.
- the transistors are to be used for other amplifier classes, e.g. B. class E or class F, it is often not possible to fully drive the transistors without exceeding the manufacturer's specifications regarding gate voltage. This Exceeding, however, can lead to failures and / or a shorter lifetime of the transistors.
- the object of the present invention is therefore to provide a high-frequency amplifier arrangement with which the abovementioned disadvantages can be avoided.
- a high-frequency amplifier arrangement which is suitable for generating output powers> 1 kW at frequencies> 2 MHz for plasma excitation, comprising:
- a printed circuit board which rests flat against a metallic cooling plate and is connected via a plurality of ground connections to the ground-connectable cooling plate, the assembly being arranged on or on the printed circuit board,
- Drain terminals of the LDMOS transistors is connected, d. a signal transmitter whose secondary winding is connected at a first end via one or more resistive elements to the gate terminal of the one LDMOS transistor and to a second end via one or more resistive elements connected to the gate terminal of the other LDMOS transistor, each gate terminal is connected to ground via at least one voltage-limiting component arrangement.
- the LDMOS transistors are fully controllable, without the allowable gate voltage is exceeded.
- the negative peak of a drive signal which comes from the secondary winding of the signal transformer, gets ground potential. This limits the negative voltage to the voltage drop across the voltage-limiting component arrangement and increases the positive peak voltage. This means that less driver power is needed for drivers driving the LDMOS transistors.
- the conduction angle ie, time that conducts one or both transistors during a period of the drive signal, is increased without the need to increase the peak voltage above the allowable value. In other words, the time in which a transistor is driven can be extended. Due to the higher DC component, the input signal is relatively more often above the threshold voltage Uth, the transistor is thus more often conductive.
- the ground connection point can be used to transfer heat from the
- LDMOS transistors to be designed for cooling plate. Thus, even better heat dissipation is ensured by the LDMOS transistors and the thermal load of the LDMOS transistors is further reduced.
- At least one voltage-limiting component arrangement can have at least one diode whose cathode is arranged on the gate side and whose anode is arranged on the ground side.
- the negative peak of Anêtsignais gets through the conductive diode ground potential.
- the negative voltage of the drive signal is limited to the voltage drop across the diode.
- At least one voltage-limiting component arrangement can have a plurality of diodes connected in series. By this measure, a disadvantage can be counteracted, which arises when the amplifier is operated in saturation, in which case the gate bias voltage continues to rise and, as a result, the drain current continues to increase and the efficiency decreases.
- Several fast diodes can be connected in series.
- a fast diode according to the invention is a diode whose reverse recovery time is less than one quarter of the period.
- a driving frequency of the transistors of, for example, 40.68 MHz ie a period of about 25 ns
- the diodes should therefore have a backward recovery time of 6 ns or less. This means that such a diode conducts only negligibly short in the reverse direction and blocks in the direction of conduction.
- the series connection of diodes may comprise at least two diodes of different types.
- the series circuit may comprise a fast diode and a Zener diode.
- the at least one voltage-limiting component arrangement may have at least one diode and one resistor in series. Also by the above-mentioned disadvantages can be reduced.
- the high frequency amplifier arrangement is symmetrical, i.
- the two LDMOS transistors are assigned identical component arrangements.
- the module is to be arranged on or on the printed circuit board. As a result, the module can be cooled well via the printed circuit board, which is thermally conductively connected to the cooling plate.
- the assembly may be disposed on a substrate.
- the module can be mounted in a housing. orders be.
- the housing of the module can be arranged in a passage recess in the printed circuit board.
- the connections of the module can be contacted on the printed circuit board.
- the assembly may be mounted on a copper plate for cooling.
- the copper plate can be used for heat transfer from the assembly to the cooling plate, and in particular for heat spreading.
- the copper plate may be arranged in the same through-hole in the circuit board, as the construction group.
- the copper plate may have a larger area than the cooling plate facing surface of the assembly.
- the through-hole can be designed in stages, adapted to the surfaces of the copper plate and the assembly. This can increase the life of the transistors in addition, since they do not heat up so much. In addition, by arranging close to the grounded cooling plate, disturbances due to high currents in switching operations can be better suppressed.
- the printed circuit board may be a multi-layer printed circuit board, in particular a meh-layer printed circuit board with at least one inner layer, in particular a multi-layer printed circuit board with at least four layers.
- An outer layer may be completely connected to the ground for direct mounting and contact with the cooling plate also connected to the ground.
- the power transformer may be arranged on the printed circuit board or a separate printed circuit board and the primary winding may be formed planar on the respective printed circuit board. This results in a particularly cost-effective design of the primary winding. Also, a cooling of the power transformer can be easily realized.
- the gate terminal may be connected through a resistor to a capacitor connected to ground. Through these components and a working point voltage source, the gate capacitance can be discharged.
- the resistance can have a resistance value of less than 1 k ⁇ and the capacitor can have a capacitance greater than 1 nF.
- the resistors may be connected to a common capacitor, which in turn may be connected to the working point voltage source.
- FIG. 1 shows a first embodiment of a high-frequency amplifier arrangement according to the invention
- FIG. 2 shows a second embodiment of a high-frequency amplifier arrangement according to the invention
- Fig. 3 shows two different voltage waveforms to illustrate the effect of the invention.
- FIG. 1 shows a first embodiment of a high-frequency amplifier arrangement 1.
- the high-frequency amplifier arrangement 1 comprises a printed circuit board 2 on which an assembly 3 is arranged.
- the assembly 3 has two LDMOS transistors Sl, S2, which are of identical design and which are connected with their source terminal in each case to a ground connection point 5. With their drains are the
- LDMOS transistors Sl, S2 are each connected to one end of a primary winding 6 of a power transformer 7.
- the secondary winding 4 of the power transformer 7 is connected to a ground 8 and the other with a high-frequency output 9.
- the high-frequency amplifier arrangement 1 furthermore has a signal transmitter 10, which has a primary winding 11 which is connected to a high-frequency input 12.
- the secondary winding 13 of the signal transformer 10 is connected via a resistive element 14, in particular a resistor, to the gate terminal 15 of the LDMOS transistor Sl.
- the secondary winding 13 is connected via a resistive element 16, in particular a resistor, to the gate terminal 17 of the LDMOS transistor S2.
- the resistive elements 14, 16 and the secondary winding 13 are thus connected in series.
- the signal transmitter 10 is also arranged on the circuit board 2, as well as the power transformer. 7
- the gate connection 15 is connected to ground 19 via a voltage-limiting component arrangement 18, which is designed here as a diode.
- a voltage-limiting component arrangement 18 which is designed here as a diode.
- the cathode of the diode is on the gate side and the anode is arranged on the ground side.
- the gate terminal 17 via a voltage-limiting component assembly 20, which is also designed here as a diode, also connected to ground 21.
- This measure NEN the drive signals of the gate terminals 15, 17 are voltage shifted (amplitude shifted).
- a driver circuit for generating the drive signals of the LDMOS transistors S1, S2 thus comprises the high-frequency input 12, the signal transmitter 10, the resistive elements 14, 16, the voltage-limiting component arrangements 18, 20, the resistors 22, 23 and the DC voltage source 24th
- the printed circuit board 2 lies flat on a cooling plate 25, which is also connected to ground 26.
- the printed circuit board 2 is connected to the cooling plate 25 via a plurality of ground connections 8, 19, 21, 27.
- the ground connection 5 represents a ground connection point for heat transfer from the LDMOS transistors Sl, S2 to the cooling plate 25.
- FIG. 2 shows an alternative embodiment of a high-frequency amplifier arrangement ⁇ , the components which correspond to those of FIG. 1 bearing the same reference number.
- One difference of the high-frequency amplifier arrangement is that the voltage-limiting component arrangement 18 ⁇ in this case has two diodes connected in series. Accordingly, the voltage-limiting component arrangement 20 ⁇ is formed.
- FIG. 3 shows a plurality of voltage curves over time, as applied to the gate terminals 15, 17 as drive signals, with the voltage curve 100 applied to the gate terminal 15 if no voltage-limiting component arrangement 18 or 18 ⁇ is present and the voltage profile 101 corresponding to the gate terminal 17 is present, if no voltage-limiting component arrangement 20 or 20 ⁇ is provided.
- the effect of the voltage-limiting component arrangements 18, 18 ⁇ 20, 20 ⁇ is visible in the voltage curves 102, 103, where the negative peak of the voltage curves 102, 103 approximately to the voltage of the voltage-limiting component assemblies 18, 18 ⁇ 20, 20 ⁇ in particular on the is limited to one or more diodes sloping voltage.
- the voltage of the voltage waveforms 102, 103 which are applied to the gate terminals 15, 17, when a voltage-limiting component assembly 18, 18 ⁇ 20, 20 ⁇ is used shifted to higher voltage values.
- the positive peak voltage is increased and the negative peak of the drive signals of the gate terminals 15, 17 is limited to the voltage drop, for example at the diodes, of the voltage-limiting component arrangement 18, 20, 20.
- a lower driver power ie power of the RF signal at the high-frequency input 12, is required.
- a smaller gate voltage leads to a reduction of the failure risk of the LDMOS transistors Sl, S2.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680038662.5A CN107735946B (zh) | 2015-06-30 | 2016-06-30 | 高频放大器设备 |
KR1020187002836A KR102478332B1 (ko) | 2015-06-30 | 2016-06-30 | 고주파 증폭기 장치 |
JP2017568152A JP6768014B2 (ja) | 2015-06-30 | 2016-06-30 | 高周波増幅器装置 |
EP16739430.3A EP3317964B1 (de) | 2015-06-30 | 2016-06-30 | Hochfrequenzverstärkeranordnung |
US15/854,163 US10714313B2 (en) | 2015-06-30 | 2017-12-26 | High frequency amplifier apparatuses |
US16/854,250 US20200251309A1 (en) | 2015-06-30 | 2020-04-21 | High frequency amplifier apparatuses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015212247.6 | 2015-06-30 | ||
DE102015212247.6A DE102015212247A1 (de) | 2015-06-30 | 2015-06-30 | Hochfrequenzverstärkeranordnung |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/854,163 Continuation US10714313B2 (en) | 2015-06-30 | 2017-12-26 | High frequency amplifier apparatuses |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017001594A1 true WO2017001594A1 (de) | 2017-01-05 |
Family
ID=56418497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/065376 WO2017001594A1 (de) | 2015-06-30 | 2016-06-30 | Hochfrequenzverstärkeranordnung |
Country Status (7)
Country | Link |
---|---|
US (2) | US10714313B2 (de) |
EP (1) | EP3317964B1 (de) |
JP (1) | JP6768014B2 (de) |
KR (1) | KR102478332B1 (de) |
CN (1) | CN107735946B (de) |
DE (1) | DE102015212247A1 (de) |
WO (1) | WO2017001594A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10615755B2 (en) | 2015-06-30 | 2020-04-07 | Trumpf Huettinger Gmbh + Co. Kg | Non-linear high-frequency amplifier arrangement |
US10714313B2 (en) | 2015-06-30 | 2020-07-14 | Trumpf Huettinger Gmbh + Co. Kg | High frequency amplifier apparatuses |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2580155A (en) * | 2018-12-21 | 2020-07-15 | Comet Ag | Radiofrequency power amplifier |
JP2021061577A (ja) * | 2019-10-09 | 2021-04-15 | 株式会社村田製作所 | 高周波モジュールおよび通信装置 |
DE102020104090A1 (de) * | 2020-02-17 | 2021-08-19 | Comet Ag | Hochfrequenzverstärker-Anordnung für einen Hochfrequenzgenerator |
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-
2015
- 2015-06-30 DE DE102015212247.6A patent/DE102015212247A1/de active Pending
-
2016
- 2016-06-30 CN CN201680038662.5A patent/CN107735946B/zh active Active
- 2016-06-30 EP EP16739430.3A patent/EP3317964B1/de active Active
- 2016-06-30 WO PCT/EP2016/065376 patent/WO2017001594A1/de active Application Filing
- 2016-06-30 KR KR1020187002836A patent/KR102478332B1/ko active IP Right Grant
- 2016-06-30 JP JP2017568152A patent/JP6768014B2/ja active Active
-
2017
- 2017-12-26 US US15/854,163 patent/US10714313B2/en active Active
-
2020
- 2020-04-21 US US16/854,250 patent/US20200251309A1/en not_active Abandoned
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Title |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10615755B2 (en) | 2015-06-30 | 2020-04-07 | Trumpf Huettinger Gmbh + Co. Kg | Non-linear high-frequency amplifier arrangement |
US10714313B2 (en) | 2015-06-30 | 2020-07-14 | Trumpf Huettinger Gmbh + Co. Kg | High frequency amplifier apparatuses |
Also Published As
Publication number | Publication date |
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DE102015212247A1 (de) | 2017-01-05 |
CN107735946A (zh) | 2018-02-23 |
US20180122621A1 (en) | 2018-05-03 |
CN107735946B (zh) | 2021-11-19 |
KR102478332B1 (ko) | 2022-12-15 |
EP3317964B1 (de) | 2020-04-08 |
US10714313B2 (en) | 2020-07-14 |
JP6768014B2 (ja) | 2020-10-14 |
JP2018519756A (ja) | 2018-07-19 |
EP3317964A1 (de) | 2018-05-09 |
US20200251309A1 (en) | 2020-08-06 |
KR20180021884A (ko) | 2018-03-05 |
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